12736426 has 8 divisors (see below), whose sum is σ = 19165860. Its totient is φ = 6347808.

The previous prime is 12736369. The next prime is 12736429. The reversal of 12736426 is 62463721.

12736426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10017225 + 2719201 = 3165^2 + 1649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12736429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9411 + ... + 10678.

Almost surely, 2^12736426 is an apocalyptic number.

12736426 is a deficient number, since it is larger than the sum of its proper divisors (6429434).

12736426 is a wasteful number, since it uses less digits than its factorization.

12736426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20408.

The product of its digits is 12096, while the sum is 31.

The square root of 12736426 is about 3568.8129679208. The cubic root of 12736426 is about 233.5335021557.

The spelling of 12736426 in words is "twelve million, seven hundred thirty-six thousand, four hundred twenty-six".